<div class="error">
  <img class="err-img" src="{{errMessage.img}}">
  <div class="interval"></div>
  <div>
    <h1 class="err-num">{{errMessage.num}}</h1>
    <p class="message">{{errMessage.message}}</p>
    <button nz-button nzType="primary" [routerLink]="['/']">返回首页</button>
  </div>
</div>